Keil is derived from Germanic origins. The name is of the meaning clumsy person. The name Keiler is a variant of Keil. Keil is rarely used as a baby name for boys.
Definition of flapjack for English Language Learners. : a thick, sweet cake made of oatmeal usually with molasses or honey.
According to Thurop Van Orman (Flapjack's voice actor), Flapjack is seven years old. According to the episode K'nuckles is a Filthy Rat, Flapjack's blood carries a natural immunity to the Bubonic Plague.